Published September 9, 2024
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Table 2 in Small crickets of New Zealand (Orthoptera: Grylloidea: Trigonidiidae and Mogoplistidae), with the description of two new genera and species
Authors/Creators
- 1. Wētā Conservation Charitable Trust, 135 Blacks Road, Ōpoho, Dunedin 9010, New Zealand.
Description
Table 2 (continued on next page). Adult male and female measurements in the New Zealand species of Bobilla Otte & Alexander, 1983. All abbreviations used here are explained in the Material and methods section. All counts and measurements are median values, followed by minimum and maximum values in brackets. N indicates the sample size.
| Measuremen t | Bobilla nigrova (Swan, 1972) | Bobilla bigelowi (Swan, 1972) | ||
|---|---|---|---|---|
| male | female | male | female | |
| Body length (mm) | 6.6 (5.9–7.1) N = 11 | 8.1 (5.6–9.6) N = 19 | 6.2 (5.4–7.2) N = 30 | 6.7 (5.3–8.6) N = 28 |
| Pronotum width (mm) | 2.0 (1.9–2.2) N = 9 | 2.3 (1.8–2.7) N = 15 | 2.0 (1.7–2.1) N = 27 | 2.0 (1.6–2.4) N = 22 |
| Pronotum length (mm) | 1.3 (1.1–1.4) N = 9 | 1.5 (1.3–1.6) N = 15 | 1.2 (1.1–1.9) N = 22 | 1.4 (1.1–2.0) N = 27 |
| Femur III length (mm) | 4.8 (4.6–4.9) N = 6 | 5.6 (4.9–6.1) N = 12 | 4.6 (4.2–5.0) N = 22 | 5.0 (4.4–5.6) N = 18 |
| Tibia III length (mm) | 3.7 (3.5–4.2) N = 6 | 4.4 (3.8–5.2) N = 12 | 3.6 (3.3–4.1) N = 22 | 4.0 (3.4–4.7) N = 18 |
| Number of subapical spurs on TIII inner | 3 | 3 | 3 | 3 |
| Number of subapical spurs on TIII outer | 3 | 3 | 3 | 3 |
| Ovipositor length (mm) | – | 5.9 (4.0–6.7) N = 20 | – | 4.0 (3.1–4.9) N = 26 |
| EL / IOD | 0.77 (0.71–0.77) N = 6 | 0.75 (0.72–0.81) N = 12 | 0.84 (0.80–0.90) N = 20 | 0.84 (0.79–0.88) N = 17 |
| Short FW Wing Long FW morphs Fully winged | – | 17 | – | 16 |
| 8 | 2 | 25 | 6 | |
| 0 | 2 | 2 | 0 | |
| FWW (mm) | 2.2 (2.1–2.4) N = 7 | 1.5 (1.3–1.8) N = 12 | 2.0 (1.9–2.4) N = 25 | 1.3 (0.9–1.6) N = 18 |
| FWL (mm) | 3.2 (2.9–3.6) N = 8 | Short 2.5 (1.7–3.1) Long 4.7 (4.6–4.8) | 3.1 (2.5–3.7) N = 27 | Short 2.1 (1.5–2.7) Long 3.9 (3.6–4.2) |
| HWL (mm) | – | – | 8.0 (8.0–8.0) N = 2 | – |
| PCSD / PCLD (Mainland NZ only) | 0.478 (0.438–0.488) N = 13 | – | 0.522 (0.496–0.558) N = 30 | – |
| ST | 204 (180–246) N = 11 | – | 152 (118–171) N = 30 | – |
| SFL (µm) | 1354 (1284–1554) N = 6 | – | 1265 (944–1384) N = 8 | – |
| tmao / tmai | 0.59 (0.52–0.65) N = 6 | 0.61 (0.54–0.69) N = 11 | 0.66 (0.59–0.72) N = 20 | 0.64 (0.56–0.74) N = 17 |
| tao1 / tai1 | 0.97 (0.88–1.07) N = 6 | 0.99 (0.78–1.08) N = 12 | 0.98 (0.82–1.12) N = 20 | 0.94 (0.81–1.08) N = 18 |
| Song (21°C) | Song (22°C) | |||
| Peak frequency (kHz) | 8.1 | – | 7.9 | – |
| Pulse duration (ms) | 33 | – | 24 | – |
| Pulse interval (ms) | 69 | – | 23 | – |
| Pulse rate (pulses/s) | 10.1 | – | 20.3 | – |
| Chirp duration (s) | 0.4–0.7 | – | 0.5–0.6 | – |
| Chirp interval (s) | 0.4–0.6 | – | 0.2–0.3 | – |
Notes
Published as part of Hegg, Danilo, 2024, Small crickets of New Zealand (Orthoptera: Grylloidea: Trigonidiidae and Mogoplistidae), with the description of two new genera and species, pp. 11-12 in European Journal of Taxonomy 955 (1) on page 11, DOI: 10.5852/ejt.2024.955.2655, http://zenodo.org/record/13742408
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Additional details
Identifiers
References
- Otte D. & Alexander R. D. 1983. The Australian Crickets (Orthoptera: Gryllidae). Monograph 22, The Academy of Natural Sciences of Philadelphia. Philadelphia, PA.
- Swan D. I. 1972. The common nemobiine field crickets of New Zealand (Orthoptera: Gryllidae). Journal of the Royal Society of New Zealand 2 (4): 533 - 539. https: // doi. org / 10.1080 / 03036758.1972.10423297